Paper articles exhibiting water resistance and method for...

Paper making and fiber liberation – Processes and products – With coating after drying

Reexamination Certificate

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C162S164100, C162S164600, C162S172000

Reexamination Certificate

active

07666273

ABSTRACT:
This invention relates to a process for preparing sized paper and paperboard which incorporates in the paper and paperboard at the size press size a composition comprising one or more “hydrophobic polymers” wherein hydrophobic polymers, the amount of such polymers and the weight ratio of starch to such polymer in the composition are selected such that the paper and paper board exhibits a Cobb Value equal to or less than about 25 and to a sized paper or paperboard web formed by the process.

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